Question

why are proteins ushally absent in urine? give one possible (abnormal) reason why they might be present.

Answer 1

proteins are absent in urine because urination is the process of removal of waste from the body. protein is required by the body for metabolic processes, therefore the body will not excrete them in urine as it is not waste. Healthy kidneys take wastes out of the blood but leave protein in the blood. Damaged kidneys may fail to separate blood protein from the wastes and protein may leak into the urine.As kidney function worsens, the amount of proteins in the urine increases.People with proteinuria have high amounts of protein in their urine. The condition is a sign of kidney disease. kidneys are filters that don't let protein pass through. When kidney disease damages them, proteins such as albumin may leak from your blood and leave the bod through urine.